Hurricanes

According to the National Hurricane Center:

"A tropical cyclone is a rotating, organized system of clouds and thunderstorms that originates over tropical or subtropical waters and has a closed low-level circulation." They are classified as follows:

Hurricane Preparedness

When preparing for hurricane season the needs of all members of a household should be considered. If a household includes a young child, senior citizen or a person with a disability or severe illness, special steps to assist them may be necessary and should be incorporated into all emergency planning. Pets require special handling as well, especially since most shelters do not accept animals.

Hurricanes can produce storm surges of water along the coastline, high winds,tornadoes, heavy rains and flooding. In some hurricanes, wind alone can cause a lot of damage such as downed trees and power lines, collapsing weak areas of homes, businesses or other buildings. Roads and bridges can be washed away and homes can be ruined by flood waters.

Hurricane Categories

The table below provides more information about the 5 categories in the Saffir-Simpson scale, which is used to describe the strength of a hurricane. The table includes the wind speeds and likely damage impacts for a hurricane in each category.

Hurricane Inundation Maps

The U.S. Army Corps of Engineers, under the Hurricane Evacuation Study Program, develops information that assists Federal, State, and Local Emergency Management Officials in planning for and responding to a hurricane. Under this program, the Army Corps recently (summer 2009) updated the inundation maps for coastal areas in Rhode Island. The maps were developed using GIS software by overlaying the hurricane surge water surface elevations from Sea, Lake, and Overland Surge from Hurricanes (SLOSH) model results on top of ground elevations from FEMA LiDAR data to show which areas would be inundated (flooded) by hurricane storm surge.

To learn more about the study and the production of the maps, click here.

Please keep in mind, these maps are based on the results from a worst-case scenario model and are intended to estimate areas of concern in the event of a hurricane. Do not rely on these maps in the event of a hurricane. These maps are provided as an informational tool to help consider impacted areas and even to help establish tougher land use guidelines and/or mitigation needs in areas that may be inundated.